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Deep-level garage system (Krupp AG – Berlín) 1995

Underground car park for 28 vehicles in Berlin downtown. The vehicle running on the platform is lowered together with the platform using a hydraulic system to two underground floors where it is moved together with the platform as required using longitudinal and cross conveyers driven by spur belt. The vehicle lifting is enabled by a control system.

Rebuilding of conveyance line (VW Mosel) 1997

VW Golf car body paint shop conveyance (feeding) line is rebuilt to be fit for a new VW Pasat car body type. The roller line is extended by a turntable for larger car body. The body is laid on transport frame (skid). The frame carrying the body is fed to the following paint shop sections on suspended conveyer.

Conveyance line ( Müller Milch) 1997.

Conveyance line for palettes with milk and yoghurt in a new plant is built. It consists of roller conveyers for longitudinal and cross transport of empty and full palettes. The maximum load is 2 t / palette. It includes a cooling section and stacker. The total line length is1,200 m. The line was installed including electrical equipment and control system.

Inspection section ( VW Wolfsburg) 1999

An inspection section is incorporated into the car body conveyance lines between paint shop and assembly line. The car body is transported to inspection cab (equipped with adequate lighting system and wooden platforms) using cross, longitudinal and lifting conveyers and transfer tables. Following the paint inspection the body including supporting frame is returned on the conveyance line.

 

Renovation of bevelling machine ( Sandvik ) 2000

The machine is used to remove spikes and sharp edges of split tubes/bars of 12 to 50 mm diameter. The tube/bar is transported to a stop and firmly fixed in prismatic tongs. The bevelling unit equipped with rotary head with replaceable cutting tips is axially fed to contact the tube/bar and bevels the edges at the required angle. The tube/bar is then released and removed to the following conveyer by a cross feeder. 

Tube/bar packing machine ( Sema systemtechnik) 2000

Machine packing tubes/bars into hexagonal bundle. The tubes/bars of 12 to 90 mm diameter and up to 12 m length are sorted from the container. They are stacked to a bundle using cross chain conveyers. The size of the final bundle is set by the jaw angle and opening depending on the tube/bar dimension. The gripped bundles are transported to a packing line where they are prepared for shipment.

Renovation of tube drawing line ( Sandvik P+P ) 2000

Stainless steel tube drawing line. Tube semiproduct mounted on a mandrel is drawn through a matrix to the required tube dimensions using a hauling truck. The tube is straightened on straightening machine. After feeding to an adjustable stop it is fixed and split to accurate length. The finished tube is removed by arms to collecting container.

Tube grinding machine ( Sandvik CZ ) 2002

For grinding of stainless steel tubes of 12 to 90 mm diameter and up to 40 m length a line is installed in 40 m length at the grinding machine inlet and 40 m length at the grinding machine outlet. The tubes are ground by 12 grinding stands with separate drives. The stands are fed to contact the tubes separately.

Grinding system: centerless. The tubes are ground by 12 abrasive belts of 150 mm width. The tubes are advanced and guided during the grinding using driving and following rubberized pulleys.

Tube surface quality after grinding: up to 0.4 μm. Tube advance speed: up to 20 m/min

Tube end pointing ( MITTAL Steel Karviná ) 2005

Before cold drawing. Tubes of 10 to 45 mm diameter are automatically fed to rotary forging head. After forging to the required dimension the tube is removed and placed in a pocket. 

Tube splitting to fixed length ( ŽELEZIARNE Podbrezová ) 2005

After non-destructive testing the drawn tubes of 15 to 45 mm diameter and up to 9 m length are split at ends and half to fixed lengths. After splitting both tube ends are cleaned by brushes and placed in a collecting pocket.

Boiler tube splitting line ( NIKOTUBE - UA) 2007

Boiler tubes of 34 to 140 mm diameter and 25 m length. The tube ends are trimmed by two circular saws at the line inlet. The tubes are then transported to an ultrasonic testing machine. Any defective tubes are put aside for regrinding and repeated ultrasonic testing. The tubes free of defects are split to accurate lengths and placed in collecting pockets.

Nondestructive testing of tube ends ( NIKOTUBE - UA) 2007

Boiler tubes of 34 - 140 mm diameter and up to 25 m length are stored in a container. They are dosed by 2 pcs from the container. The tubes are magnetized by magnetic bars and both ends of tubes with maximum length of 250 mm are examined in a test chamber. Test method: magnetic particles and UV lamp. The good and defective tubes are placed in collecting pockets at the line end.

Automatic stainless steel tube line ( CENTRAVIS – UA ) 2007

Stainless steel tubes of 10 to 60 mm and up to 25 m length are transported from an annealing furnace to straightening machine. The tubes are semiautomatically sorted and dosed one by one to the straightening machine.

Tube straightening accuracy: 0.2 mm/m

After straightening both tube ends are sealed with plastic plugs and dosed to a tube grinding machine. After regrinding the tubes are transported to a non-destructive testing section. After testing the tubes are spilt to the required lengths and place in four different collecting pockets.

All the production line runs in automatic mode.

Tube grinding machine ( Sandvik - CZ ) 2008

For grinding of stainless steel tubes of 12 to 90 mm diameter and up to 40 m length two parallel lines are installed in 40 m length at the grinding machine inlet and 40 m length at the grinding machine outlet. The grinding machine is equipped with 12 abrasive belts of150 mm width with separate drives. The belts are fed to contact the tubes separately.

Grinding system: centerless. The tubes are advanced and guided during the grinding using driving and following rubberized pulleys.

Tube surface quality after grinding: up to 0.4 μm. Tube advance speed: up to 20 m/min.

Tube adjustment line ( ŽELEZIARNE Podbrezová) - 2008

Cold drawn tubes of 55 mm diameter and up to 17 m length

After drawing and annealing the bundled tubes are placed in a sorting pocket from where they are automatically dosed one by one to a straightening machine. Straightening accuracy: 0.3 mm/m.

After straightening the tubes are split to accurate lengths by three circular saws. After splitting the tube ends are cleaned by brushing and purging. The non-destructive testing table is adjustable to the tube diameter. The testing is made using the “tube after tube” system based on contact.

After visual examination the tube surface is electrostatically preserved and the tubes are stacked into a hexagonal bundle in a fully automatic cycle. After wrapping the tube bundle is weighed and prepared for shipment.

Adjustment line cycle: up to 13 sec/pc

Tube transport to splitting in a layer ( NIKOTUBE - UA) 2008

Mechanization and formation of tube layer for layer splitting by circular saw. Boiler tubes up to 140 mm diameter are automatically grouped and laid in the layer on a roller conveyer. After splitting to accurate lengths the tubes are fed one by one to a bevelling machine and nondestructive testing machine.

Tube end bevelling (MITTAL STEEL – CZ) - 2009

Tubes of up to 140 mm diameter and 12 m length. The tubes are taken from a container table one by one and bevelled on both ends by 2 bevelling machines.

The bevelling head bevels the internal and external edges and face of the tube. The tubes are transported between the bevelling units using roller conveyers and walking reloaders.

 

Tube mechanization and repair for NDT (NIKOTUBE - UA) 2009

Rolled tubes of up to 340 mm diameter are transported to a nondestructive testing section. After the testing the defective tubes are reloaded on a parallel line with three rotary grinding sections. After repair the tubes are sent to the nondestructive testing section again.

The tubes free of defects are fed to an end trimming unit and placed in collecting bags.

10-cylinder tube straightening machine ( VSMPO – AVISMA – AU) 2010

For titanium tubes of 3 to 30 mm diameter and 18 m length

18 m long infeed line, 10-cylinder straightening machine with automatic adjustment control, 18 m long outfeed line.